package com.example.shiro.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    //shiroFilterFactoryBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);

        //添加shiro的内置过滤器
        /*
        * anon:无需认证就可以访问
        * authc:必须认证了才能让问
        * user: 必须拥有记住我功能才能用
        * perms:拥有对某个资源的权限才能访问、
        * role:拥有某个角色权限才能访问
        * */

        //授权，正常的情况下，没有授权会跳转到未授权页面
        Map<String ,String > filterMap = new LinkedHashMap<>();
        filterMap.put("/user/add","perms[user:add]");
        filterMap.put("/user/update","perms[user:update]");


        filterMap.put("/user/*","authc");

        bean.setFilterChainDefinitionMap(filterMap);
        bean.setLoginUrl("/toLogin");
        //未授权页面
        bean.setUnauthorizedUrl("/noauth");




        return bean;
    }


    //DefalutWebSecurityManager

    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联UserRealm
        securityManager.setRealm(userRealm);
        return securityManager;

    }

    //创建realm对象，需要自定义类
    @Bean(name = "userRealm")
    public UserRealm userRealm(){
        return new UserRealm();
    }

    //整合ShiroDialect:用来整合shiro thymeleaf
    @Bean
    public ShiroDialect getShiroDialect(){
        return new ShiroDialect();
    }

}
